Improvement in paper-cutting machines



A. D OTJGHER'TYL PAPER-CUTTING MACHINES.

Patented June 13, 1876.

UNITED STATES ATENT Prion.

ANDREW DOUGHERTY, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN PAPER-CUTTING MACHINES.

Specification forming part of Letters Patent No. 178,609, dated J une13, 1876 application filed April 6, 1876.

T 0 all whom it may concern:

Be it known that I, ANDREW DOUGHERTY, of Brooklyn, Kings county, NewYork, have invented Improvements in Paper-Cutting Machines, of which thefollowing is the specification:

The object of my invention is to cut with accuracy printed, embossed, orother forms or figures from the sheets of fabric containing them; andthis object I efl'ect by the mechanism shown in the accompanyingdrawing, in which Figure 1 is a perspective view,partly in section, ofmy improved cutter; and Fig. 2, a detached sectional view.

The essential features of the machine are a punch, A, die a, table B,supporting the die, and feed-rolls c c e e. The table B is a part of thebase of the machine, which supports standards b b carrying the bearingsof a shaft, 0, and a guide for the vertically-reciprocating punch A,which is connected to an eccentric pin, 01, of the shaft by a rod, D.The rolls 0 6 turn in bearings on the base, and have at their front endscog-wheels i, which gear with toothed wheels 6 of the rolls, as shown,and with toothed wheels K, at the rear ends of the rolls 0, gearsacog-wheel, E, hung to a stud upon the standard I). The rearjournals ofthe rolls ce turn in fixed bearings the front journals in bearingscarried by levers F, hung to studs on the base, and jointed at theopposite ends to rods m, connected to arms a of shafts 0, extendingthrough the baseplate, and carrying horizontal arms 0 out- Side the Sme, as shown by dotted lines, Fig. 1.

A spring, t, bearing on each arm it, tends to maintain the upper roll incontact with that beneath, and a spring-bar, G, having a shoulder, 8,and knob t, is so arranged that the shoulder will catch beneath andretain the arm 0 when elevated to raise the roll 6. The shaft G carriesa fly-wheel, H, and a driving-wheel, I, and at the inner side of thelatter is a stud, a, adapted to engage a series of studs, 12, on thetoothed ,wheel E, so that each revolution of the driving-shaft turns thewheel E part of a revolution, imparting an intermittent rotation to allthe feed-rolls. A portion of the table B is cut away to receive a plate,K, having a rib,f, at the rear edge, and through a nut, w,'at the underside of the plate passes athreaded spindle,l l, turningin fixedbearings, and extending to the outside of the base.

By turning the spindle N the plate K is adjusted so that the rib f willinsure a proper presentation to the punch of the strip to be out, whichis placed upon the table with its edge against said rib, a rotary motionin the direction of its arrow being then imparted to the drivin gshaft.

The attendant, pressing upon the levers 0 0", elevates the upper rolls,passes the strip freely between the rolls, and adjusts it beneath thecutter. The arms 0 0 are then released, and the strip clamped betweenthe rolls, while the punch descends, cutting the figured portion fromthe strip. As the punch rises the rolls are set in motion, and feedforward the strip such a distance as to bring the next figure below thepunch, which then descends and removes the figured portion, as before.

By properly adjusting'the studs u o the extent of feed may be regulated;but as it is not always possible to print or emboss the figures atprecisely equal distances from, each other on the strips, it isnecessary, to insure accurate cutting, that the strips be capable ofadjustment during the operation of the machine. This is secured by theuse of adjustable rolls. If, for instance, the attendant discovers thatthe figure is not central with the punch, she depresses the arms 0 0',raising the upper rolls, adjusts the strips, and then, releasing the.

arms, again clamps the strip, the spring-catch G retaining the arm 0,after adjustment, so that one hand can be employed to move the strip,while the other depresses the lever o. By pressure upon the knob t thelever 0 is instantly-released.

One set of feed-rolls will answer, providing the margin on the strip ofpaper or card-board is of sufficient length from the printed matter toremain between the rolls while the last card is being cut, therebyinsuring accuracy. But as it often occurs that the margins are not ofsufficient length, owing to irregularity in printing, I use a second setof rolls, which hold the skeleton of the strip of fabric after it leavesthe first set of rolls, and retain the same until the last figure iscut, and then remo th Waste.

By the arrangement of studs on the wheels I E a positive and veryuniform movement of the rolls is insured. ()tlzer devices, however. maybe employed for adjusting and operating the feed-rolls, the rib f, andthe punch without departing from the main features of my invention.

While the machine may be effectually employed for cutting out anyprinted or embossed figures or matter from strips or sheets, it hasproved especially serviceable for cutting out playing-cards of thebetter qualities, where the cards have round corners, and extremeaccuracy is required to prevent uneven margins.

I claim- 1. The combination, with the punch and table, of a pair offeed-rolls, c 0, arranged at one side of the punch, controlling themovement of the paper below the latter, operating intermittingly, andprovided with appliances, substantially as described, whereby the upperroll may be elevated or maintained with a yielding pressure against thelower roll, as set forth.

2. The combination of the punch A, table B, rolls 0 0 e e, andappliances substantially as described,-for elevating the upper rolls,leaving the sheet unconfined beneath the punch, for the purposespecified.

3. The combination of the punch A, table B, rolls 0 e, turning in fixedbearings, levers F F carrying the rolls e c, and arms 0 0", for

operating said levers, substantially as de-.

.on said shaft, and wheel E, gearing with the rolls, and carrying studsc, substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

'A. DOUGHERTY.

Witnesses:

WILLIAM H. DOUGHERTY, EDWARD E. COOPER.

